In my estimation there are about 10000 players in the world who fit into this category. These are well seasoned players who have studied the essential words,and have a good solid core strategy. They would typically play 2 BONUSES ( on AVG ) per game and may even score 500 – 600 points on rare occasions.
Their vocabulary would consist typically of the following , ALL 2 and 3 letter words, useful 4 letter words ( JQXZ, vowel dumps ) and 2000 of the most probable 7 and 8 letter words.
Players at this level would typically have the ratings below.
WESPA 750 – 1300
UK 75 – 130
SL 575 – 1000